Boiler



(No Model.) l W. W. J. TOUSSA1NT.

BOILER.

No. 598,888. Patented Peb. 8, 1888.

I Ille' 'Wwf/5555.-

NITED STATES- PATn-NT OFFICE.

WINANI) VM. J. TOUSSAINT, OF BROOKLINE, MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 598,686, dated February8, 1898. Application filed lune 23, 1897. Serial No. 641,900r (Nomodel.)

To all whom it may concern:

Be it known that I, WINAND WM. J ToUssAINr, of Brookline, in the countyof Norfolk and State of Massachusetts, have invented certain new anduseful Improvements .in Boilers; and I hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying drawings, forming part of this specification.

This invention has reference to improvements in steam-boilers, andparticularly in upright boilers.

utilize the heat in its passage from the nrebox to the chimney.

Another object of the invention is to simplify the construction of theboiler.

Another object of the invention is to so construct a boiler having areturn-iire-tube system that the tubes may be more readily cleaned thanas heretofore constructed. A

Another object of the invention is to improve the connections betweenthe direct and the return tubes and the securing devices for suchconnections. A

The invention consists in the combined rebox and feed-water heater andthe Hue-connecting section mounted thereon, in combination with theboiler-section mounted on the flue-section and having direct tubeslocated above the fire-box and return-tubes connecting with thehue-section.

The invention also consists in the tubular connections between thedirect tubes and the return-tubes and in the means for securing suchconnections.

The invention also consists in such other novel features of constructionand combination of parts as shall hereinafter be more fully described,and pointed out in the claims.

Figure l represents a front elevation of the improved boiler, partiallyin vertical section. Fig. 2 represents a top plan view of the same withthe dome removed. Fig. 3 representsa plan View of the Hue-section. Fig.4 represents an enlarged detail View of a portion of one of the tubesshown in relation to its con necting-elbow.

Similar numbers of reference designate corresponding parts throughout.

In the drawings, represents the base or ash-pit, which may be of anyusual construction, being furnished with a door through which ashes maybe removed. At the upper portion of the ash-pit is mounted a grate 6,forming the lowerportion of the fire-box. The fire-box is mounted on theupper end of the ash-pit and consists of an annular waterchamber 7,boxed between its walls around the opening 'for the fire-door 8. Thiswaterchamber is provided with the usual inlet-pipe,

as 9, and with the outlet 10, connecting with the shell of the boiler.The water passing through this chamber of the fire-box is raised Theobject of the invention is to more fully` in temperature before enteringthe boiler.

On the combined fire-box and feed-water heaterismounted the flue-section11, annular in shape, and having the partition l2 in its front portionand the partition 13 extending from its rear inner wall into the flueconnection 14. Openings are formed in the outerwall of this section forthe purpose of entering cleaning-Scrapers, doors, as 15, being suppliedfor closing these openings.

The boiler proper is mounted on the fluesection and comprises a shell16, having the lower tube-plate 17 and the upper tube-plate 18, in whichthe tubes are secured, and the dome 19. On the tube-plate 18 is axiallysecured the bolt 20, furnished with the nut 21. In the tube-plates aresecured the double system of tubesnamely, the direct tubes 22, disposedabove the fire-box, and the returntubes 23 near the peripheries of saidplates and connecting at their lower ends with the fine-section. Thedirectand the return tubes are secured in the tube-plates in any usualmanner. At their upper ends they are connected in pairs by means of theelbow connections 24, which have cup-shaped ends 25 fitting over theupper ends of the tubes 22 and IOO It will be noticed that both theboiler and the flue sections are larger indiameter thanthe interior ot'the tire-box. This allows the location of a large body of water inheating proximity to the fire-box. The Hue-section, being heated fromradiation from the tire-box, will impart some of its heat to the waterin the boiler.

The gases from the fire-box pass up through the direct tubes, thenthrough the elbows 24, and down the return-tubes to the flue-section,

whence they pass around under the boiler to 'flue-sectionand comprisingthe plates 17'and V'18, a suitable shell, the tubes 22 and 23 se-1 curedin said plates and disposedasdescribed, 1 and aseries of elbowsforconnectingthe .up-v per ends of thetubes in pairs, and releasable` meansfor securing the elbows.

2. In a boiler, the combinationwith-theiirebox havingV the annularwater-chamber 7, and@ the :flue section 11 mounted thereon, of a,boiler-section Vmounted on 4 the flue section and comprising the shell16 havingthe'tube-E plates and disposed above the fire-box, and

the tubes 23secured in said plates and disposed above the flue-section.

3. In aboiler, the combination with the fireboX comprising an annularwater-chamber, and a flue-section mounted thereon, of a boiler mountedon the flue-section and having a series of direct vertical tubesdisposed above the lire-box, a series of return-tubes disposed above theflue-section and connecting therewith, and removable connections betweenthe upper ends of each pair of tubes.

4. In aboiler, the combination with a shell having upper and lowertube-plates, and direct and return tubes secured in said plate, ot' aseries of elbows removably seated at the upper ends of the tubes andconnecting them in pairs, a spider having arms bearing on the severalelbows, and means for securing the spider.

'5. The combination with the fire-box having the annular water-chamber,and the annular flue-section 11 mounted thereon and having thepartitions 12 and 13 and the iiue connection 14, of the boiler-sectionmounted on the flue-section and comprising the shell 16 having ,theplates 17 and 18, the plate 18 having the bolt 2O with the nut 2l, thetubes 22 IVINAND WM. J. TOUSSAINT.

` Witnesses:

HENRY J. MILLER, CHARLES W. WILKINS.

"and 23 secured in said plates, elbows 24 con-

